University physics. Forces review of basic concepts презентация
Содержание
- 2. Vectors and Scalars All physical quantities (e.g. speed and force) are
- 3. Representing Vectors An arrowed straight line is used. The arrow
- 4. Addition of vectors 1
- 5. Addition of vectors 2 With two vectors acting at an angle
- 6. Resultant of Two Forces
- 7. Addition of Vectors
- 8. Addition of Vectors
- 9. Resultant of Several Concurrent Forces
- 10. Rectangular Coordinate System
- 12. Direction Angles
- 13. Relationships for Direction Angles
- 14. Example 1. A force has x, y, and z components of
- 15. Determine the magnitude of the force in previous example:
- 16. Determine the three direction angles for the force :
- 18. Vector Operations to be Considered Scalar or Dot Product: A•B
- 19. Consider two vectors A and B oriented in different directions.
- 20. Scalar or Dot Product
- 21. First Interpretation of Dot Product: Projection of A on B times
- 22. Or alternatively: Projection of B on A times the length of
- 23. Some Implications of Dot Product
- 24. Example : Perform several scalar operations on the following vectors:
- 26. Vector or Cross Product
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